冬季油田压裂供水技术的研究及应用

石油是现代工业的“血液”,是国家生存和发展不可或缺的战略资源,对保障国家经济和社会发展以及国防安全有着不可估量的作用。油田钻井开发工程中的体积压裂技术在低渗透油田的开发中有着显著的增产效果,压裂供水是压裂作业的重要组成部分。我国西北地区冬季气候寒冷,为保障压裂作业在冬季正常开展,冬季的压裂供水研究和应用,对油田钻井开发具有重要的意义。     

太阳能暖棚法冬季施工

在北方，冬季施工一直是建筑业最为头疼的问题。某厂房装配车间大型设备基础需要冬季施工．其平面尺寸为44mx44m．最深处为-11．10m．最浅处为-2．73m。鉴于工期的要求及地基的越冬维护．选用了塑料暖棚法进行冬季施工。大棚内设简易采暖(利用厂房的暖风机设备)。白天利用太阳能提高棚内温度．夜间视气温情况间歇供暖。以保持坑底的温度在0℃以上。实践证明．太阳能暖棚法冬季施工效果很好．从大棚的物质用量及使用效果上看．非常适用于北方大中型地下工程的冬季施工。     

公路工程施工项目特殊季节与夜间施工安全控制要点

由于公路工程施工项目多数属于点多线长、露天和连续作业,涉及的人员、材料、机械设备多,技术含量低且需要经常变换工种的施工环境,使得安全风险大,因此,各施工单位必须对夜间和季节性施工安全措施高度重视,针对夜间施工和未来特殊气候环境影响下施工中可能发生的造成人员伤亡、疾病、财产损失、工作环境破坏等危险及紧急情况,采取有针对性的事先预防措施。     

自限温电加热带在混凝土施工中的应用

介绍了自限温电加热带和相关技术在冬季环境混凝土构件养护施工和主动控制缓粘结预应力筋的缓粘结剂固化期这两种施工技术中的应用。自限温电加热这项技术的应用,使得对冬季混凝土养护环境温度和施工条件的要求大幅度降低,满足越来越复杂的冬季建筑结构施工工艺及施工环境。同时将该技术创新的应用于缓粘结预应力筋的施工中,起到主动控制缩短缓粘结剂固化期作用。     

Mix between Satisfaction and Attributes Destination Choice: A Segmentation Criterion to Understand the Ski Resorts Consumers

This study examined the attributes prioritized by tourists when choosing a winter sports destination and their degree of satisfaction with the services provided by Portugal's only ski resort. Two hundred tourists completed a questionnaire with factor analysis then deployed to extract the data that served as the basis for cluster analysis. Our results report discrepancies between the attributes valued by tourists when choosing winter sports destinations and their degree of satisfaction with the ski resort's services. Moreover, the combination between attributes/motivations prevailing in destination selection and the subsequent satisfaction with the services provided may generate information of relevance to evaluating organizational competitiveness. Copyright © 2014 John Wiley & Sons, Ltd.     

延吉冬季旅游开发对策研究

为加速延吉市旅游业的快速发展,全面开发建设冬季旅游迫在眉睫;在延吉市旅游业蓬勃发展的大背景下,针对延吉市冬季旅游开发中存在的优势、劣势、机会、威胁,提出了延吉市冬季旅游开发的对策。     

寒地林业小城镇用地生态调整对策

寒地林业小城镇是资源再生型城镇,是我国小城镇中比较特殊的一类群体,随着资源面临枯竭与林业政策的调整,城镇发展逐渐陷入困境。采用统计分析法,对用地进行定性和定量分析,对林区小城镇用地调整提出3点对策建议,保证城镇用地性质的连续性、灵活性和弹性,这对小城镇用地调整具有重大的指导作用。     

Sustainable tourism planning and climate change adaptation in the Alps: a case study of winter tourism in mountain communities in the Dolomites

A vast body of literature suggests that the European Alpine Region is extremely sensitive to climate change. Winter tourism is closely related to climate variations, especially in mountain regions where resorts are heavily dependent on snow. This paper explores how to effectively integrate a climate change adaptation perspective with local discourses about sustainability and tourism, an increasing priority for policy-makers in the region and elsewhere. It reports on the development and application of a participatory decision support process for the analysis of adaptation strategies for local development of an Alpine tourism destination, Auronzo di Cadore (Dolomites, Italy). This experience significantly contributed to the idea that an efficient combination of modelling capabilities, decision support tools, and participatory processes can substantially improve decision-making for sustainability. The authors show that, in this case study, such a combination of methods and tools allowed for managing the involvement of local actors, stimulating local debates on climate change adaptation and possible consequences on winter tourism, encouraging creativity and smoothing potential conflicts, and easing the integration of the qualitative knowledge and the preferences of the involved actors with quantitative information. This contributed to an integrated sustainability assessment of alternative strategies for sustainable tourism planning.     

大体积混凝土冬季施工技术

在冬季进行大体积混凝土施工必须面对低温条件下质量难以控制等问题。文章以广西凤糖融安制糖有限责任公司日榨甘蔗4 000 t生产线大体积混凝土施工项目为例,阐述了在冬季开展筏板基础大体积混凝土施工时,如何从原材料选择、温度控制及施工组织等方面对大体积混凝土温度裂缝进行控制。     

浅谈辽宁地区水泥混凝土梁板冬期施工

文章结合辽宁省近几年在冬期高速公路项目施工过程,对水泥混凝土梁板冬季施工方法进行了归纳总结,以达到确保施工质量、缩短工期、加快施工进度、节约施工成本的目地。